Tengreen Wireless Bluetooth Hands-free /Handsfree Stereo Foldable Headset Headphones with Micphone Mic for Iphone Galaxy HTC Samsung Ipad Pc (Black) Bluetooth + stereo headset combo. Wireless headphone connects to other device that has Bluetooth capability, such as for iPhone for Samsung Galaxy's for HTC's, etc. 3.5mm audio jack, provides a simple wired connection of a variety of devices without Bluetooth. Allow you to answer or reject phone calls anytime and anywhere. Charged via USB, rechargeable battery, convenient and practical. Playing time up to 10 hours, and continue talk time up to 7-8 hours, standby time up to 120 hours. Good quality, foldable design and adjustable length hinges, very comfortable to wear and easy to carry. Best choice for listening music, watching movie, chatting online etc. Operation distance: 10m,Stand time:300 hour,Music playing time:300 Hour